You work as a network administrator at ABC.com. The ABC.com network consists of a single domain named ABC.com. All servers on the ABC.com network have Windows Server 2012 R2 installed.The network as a server named ABC_SR05 that provides DHCP services.  You need to create a new IPv4 subnet on the network. The subnet must support a maximum of 5，000 hosts and must have a few unused addresses as possible. 
How would you configure DHCP to support this subnet？（）

You work as an administrator at ABC.com. The ABC.com network consists of a single domain named ABC.com. All servers on the ABC.com network have Windows Server 2012 R2 installed. ABC.com has a server， named ABC-SR07， which has the ADDS， DHCP， and DNS server roles installed. ABC.com also has a server， named ABC-SR08， which has the DHCP， and Remote Access server rolesinstalled. You have configured a server， which has the File and Storage Services server role installed， to automatically acquire an IP address. The server is named ABCSR09.You then create reservation on ABC-SR07， and a filter on ABC-SR08. 
Which of the following is a reason for this configuration？（）